Aeroplane-propeller.



H. VASSl AEROPLANE PROPELLER. APPuc/nmn min 00111, 1911.

27695 5 Patented Aug. 20, 1918'.

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INVENTOR ATTOHN EY rm: Nasal: Finns an mfom-Limo.. ivAsnmnmN. o. c.

H. VASS.

AEROPLANE PROPELLER.

'APPLICAION FILED OCT. Il. 1917. 1,27 61,455. Patented Aug. 20, 191s.

3 SHEETSSHEET 2.

INVENTOR Harry Mams'.

ATTORNEY H. VASS.

AEROPLANE PROPELLER.

APPLICATION FILED OCT. H. 1917.

Patented Aug. 20, 1918.

SNVENTOR Harry 17am.

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HARRY VASS, 0F SUMMIT, NEW JERSEY.

AEROPLANE-PROPELLER.

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Speccaton of Letters Patent.

Patented aug. ao, reis?.

Application led October 11, 1917. Serial N o. 195,968.

To a'ZZ whom 'it may concern.'

Be it known that I, HARRY Vase, a citizen of the United States, residing' at Summit, in the county of Union and State of New Jersey, have inventedcertain new and useful Improvements in Aeroplane-Propellers, of which the following is a specification.

This invention has relation to certain new and useful improvements in iiying machines and relates more particularly to propellers.

he primary object of the invention resides in the provision of an aeroplane propeller and which may be employed driving the flying machine forwardly or rearwardly or elevating or lowering the machine withoutchanging the direction of the rotation of the propeller.

Another object of the invention resides in the provision of an aeroplane propeller of the above stated character which will be of simple Construction and operation and which may be employed in various types of flying machines.

A further object of theinvention resides in the provision of a propeller of the above stated character in which will be included a plurality of propeller blades and cam mechanismfor changing the adjustments of the blades and thereby causing a different action of the same during operation of the propeller.

A further object of the invention resides in the provision of a propeller of the above stated character in which the blades rotate around the cam member and continually change their positions with respect to the propeller shaft and while rotating around the cam member, the position of the cam member determines the inuence of the propeller blades upon the direction of the movement ofthe flying machine.

A still further object of the invention resides in the provision of a propeller of the above stated character which may be readily assembled and which will be constructed in such manner which should the parts become worn or damaged they may be readily replaced without the necessity of substituting a new propeller.

With these and other objects in view, as will be apparent as the description proceeds, the invention resides in the novel combination and arrangement of coperating elem ments as more specifically set forth hereinafter, pointed out in the appended claims as shown in the accompanying drawings.

In the drawings forming a part of this application, and in which similar reference characters designate corresponding parts throughout the several viewsz Figure l, is a longitudinal section through the propeller.

Fig. 2, is a transverse vertical section on the plane of line 2-2 of Fig. l, looking in the direction indicated by the arrows.

Fig. 3, is a view similar to Fig. 2, showing the propeller blades and the cam member adjusted for employing the propeller to force the flying machines upwardly.

Fig. 4, is a view similar to Fig. 3, showing the blades and cam mechanism positioned to cause the propeller to drive the machine rearwardly.

Fig. 5, is a view similar to Fig. 4, showing the blades and cam mechanism positioned to cause the propeller to force the machine downwardly.

Fig. 6, is a detail plan of one of the blades, partially in section..

ig. 7 is a transverse detail section through the blade, substantially on the plane of the line 7-7 of Fig. 6.

Fig. 8, is a detail view, showing the construction of one end of the rotary propeller frame.

Fig'. 9, is a detail view of the opposite end, showing manner in which the frame is keyed to the rotary shaft.

Fig. l0, is a detail section through the cam disk and the parts upon which the cam disk is mounted, said view being substantially on the plane of line l0-l0 of Fig. l.

Fig. ll, is a sectional view through the parts shown in Fig. l0 and at a right angle to the same, one of the propeller blade guiding clips being shown in positionvwithin a peripheral groove of the cam disk.

Fig. l2, is a detail elevation of one of the clips removed.

Fig. 13 is a transverse section through the same.

Referring more in detail to the drawings, l designates the shaft which has a gear wheel 2 mounted upon one end to receive power from an engine or some other source, as may be desired.

ln constructing` the propeller am einW ployingl a pair of rectangular frame` meinbers 3 which are extended at right angles With one another With their end' members crossed centrally in the same plates, suitable openings being provided in the. crossed ends of the iframes to accommodate the shaft l, so that the propeller may extend longitudinally oi' the same. Each end ot the Jframe formed by the crossed trame members 3 is pro vided With an apertured plate or collar and one end of the trame is lreyed to the shaft l, as shown at 5. A sleeve t3 entends through the other apertured plate or collar e through the rame stopping short ot the opposite or iirst mentioned end thereof. rhis sleeve is loosely mounted upon the propeller shaft l and has a Wheel i' or the like mounted upon its extended end for the purpose ot rotating the sleeve 6 when it is desired to adjust the propeller blades and cam mechanism, as Will be later more clearly understood.

it will be understood that the propeller shait 1 is mounted in any suitable manner in the trame Work oi the flying machine in which this propeller is incorporated. il. cam dish 8 is mounted eccentrically upon the sleee 6 and heyed to the same, as shown at 9. rShis cam dish 8 is provided 'with peripheral circumferential dore-tail groove l0, the purpose et which vwill presently appear.

rlhis propeller includes #l separate but cooperatingv blades ll which are equally prorided with trunnions l2 projecting centrally from their opposite ends to ormbearings or supports :for the blades. Each blade il is iositioned in one-haltl ot' one or the iframe members 3 and the trunnions l2 thereot are rotatably mounted in the endsV ott said frame members B, as clearly shown in the drawings. llach blade ll is composed or a rectangular frame lll with a suitable material lil Mtretched around the same and secured thereto in the usual mane-rj each blade reg senibling balancing plane oi a liying machine. By mounting each blade in one-hallE ot one oi the frame members 3, the blades are arranged at equal distances around the cam disk 8. Each blade is caused to malle one-halt ay revolution Within the halrp oic the 1rame member by which the blade is carried, upon blade revolution oi the frame member around the stationary cam dislr 8. ln order toocause this gradual changing ot the angle ot the blade with respect to the halt oi` the trame member. l have prorided a guiding clip lo which is otsubstantially til-shaped form with the free ends lo ot its downwardly extended arms turned toward one another tor engagement over the longitudinal edges of a continuous traclr member l? surrounding the central portion oi the blade ll and secured to the latter by suitable spacing members l, as shown in the drawings. AEach guiding clip l5 is mounted upon the periphery of the cam disl; 8 by a supporting pin 19 having` a beveled or flared head 2O riding in the dove-tail peripheral cireumi'erential groove l0 ot said cam dislr 8.

From the foregoing, it Will be understood that when the propeller is operating in the position shown in vFig. 2, -the machine Will be torced forwardly, earch o'l1 the blades traveling around the cam member 8 as shown in this View. l/Vhen the cam member 8 is turned to the position shownin Fig. 3, however, theblades, in passing around the same will tend to orce the machine upwardly. lllhen the cam member 8 isin the, position shorn in Fig. el? the blades Willy act to oree the machine rearwardly as they passa-round the cam member S in the manner indicated by this View. W hen thefcam member lis moved to the positionshown in Fig. 5, horlerer, the blades in passing4 aroundthe'same will serve to iorce the machine downwardly, owing to the changing` of the position et the blades theypass around the cam'member.. will be noted that the cam member Si is only given a quarter turn to change itptrom. one position to another. lt is also noted that the propeller may be placed at any position in the machine, Furtiiermore` this propeller adapted for use ouships either at the bonr or stern or amidships, thechanges in the detailed Yconstruction necessary to adapt the propellerior this use being consideredclearly Within the scope oi the Vpresent invention. lt is also to be borne in mind that many minor changes in th details oi" the construction maybe resorted to when placing this invention in practice Whende-k parting from the spirit or' the invention or the scope ot' the appended claims.

l claiu l. it propeller comprising ashatga frame rota 4able with said shat, a plurality ol pro-Y Said trame., a traclr member carried by eachoif peller blades rotatablyy mountedl said blades a cam supported lay-said shaft?V and connections between said i cam and` blade permitting the angles oi the bla/del to be changed by adj Listing the camrelative tothe shaft.

2. fi propeller comprising ashatt3 a frame, keyed r to saidl shaft and rotatable therewithy a plurality ot propeller bladesmountediin said trame, a traclry member carried by. each oi said blades, a cam supportedbygsaid shalt and prei/ded with a peripheral groove, and a plurality of clips movableY insaid groove, each 'ci said clips being,` engageable With the traclr member otone of saidfblades.

E. fi propelier comprising` a cam provided with a peripheral groove, a plurality l spaced propeller blades mounted to revolve ico lll)

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about the periphery of said cam, an endless bent to extend around one of said track track member carried by each of said blades, members. 'j and entirely surrounding the same, clips In testimony whereof I ax my signature movable in the groove in said cam member in presence of two Witnesses.

and engageable with said track member, each HARRY VASS. of said clips including a head portion Witnesses:

mounted for sliding movement in said groove WILLIAM S. LAWLER,

and a plate portion having its opposite ends JOHN E. BURGH.

@oplet of thm patent may be obtained for ve cents each, by address-ing the Gommissioner of Patente, Washington, D. C. 

